Use tomli instead of toml

Fixes a nasty encoding bug, see uiri/toml#404.

pruner.py

@@ -4,7 +4,7 @@
 from glob import glob
 from pathlib import Path
 
-import toml
+import tomli
 
 
 def prune(base_dir, exclude, include):
@@ -33,12 +33,10 @@ def prune(base_dir, exclude, include):
 
 
 def main():
-    with open("pyproject.toml") as f:
-        config = toml.load(f)
+    with open("pyproject.toml", "rb") as f:
+        config = tomli.load(f)
     pruner_config = config["tool"]["pruner"][sys.platform]
-    prune(
-        pruner_config["base_dir"], pruner_config["exclude"], pruner_config["include"]
-    )
+    prune(pruner_config["base_dir"], pruner_config["exclude"], pruner_config["include"])
 
 
 if __name__ == "__main__":

pyproject.toml

@@ -15,7 +15,8 @@ sources = ['src/tailor']
 requires = [
     'std-nslog',
     'appdirs>=1.4.4,<2.0.0',
-    'toml>=0.10.2,<1.0.0',
+    'tomli>=2.0.1,<3.0.0',
+    'tomli_w>=1.0.0,<2.0.0',
     'numpy>=1.22.1,<2.0.0',
     'pandas>=1.4.0,<2.0.0',
     'lmfit>=1.0.3,<2.0.0',

src/tailor/config.py

@@ -1,10 +1,10 @@
+import pathlib
 import sys
 from importlib import metadata as importlib_metadata
 
 import appdirs
-import toml
-import pathlib
-
+import tomli
+import tomli_w
 
 app_module = sys.modules["__main__"].__package__
 metadata = importlib_metadata.metadata(app_module)
@@ -18,8 +18,8 @@ def read_config():
     """Read configuration file."""
     config_path = get_config_path()
     if config_path.is_file():
-        with open(config_path) as f:
-            return toml.load(f)
+        with open(config_path, "rb") as f:
+            return tomli.load(f)
     else:
         return {}
 
@@ -32,7 +32,7 @@ def write_config(config):
     """
     create_config_dir()
     config_path = get_config_path()
-    toml_config = toml.dumps(config)
+    toml_config = tomli_w.dumps(config)
     with open(config_path, "w") as f:
         # separate TOML generation from writing to file, or an exception
         # generating TOML will result in an empty file